Render a case arround Benson

[mercenary-reloaded.git] / src / libsdl / opengl.c

diff --git a/src/libsdl/opengl.c b/src/libsdl/opengl.c
index b87e12b..069f877 100644 (file)
--- a/src/libsdl/opengl.c
+++ b/src/libsdl/opengl.c
@@ -172,7 +172,7 @@ void opengl_viewport(int view_width, int view_height, int split, int benson_at_l
 }
 
 /* render image or only benson */
-void opengl_blit_image(uint8_t *rgb, int filter, int benson_at_line, int render_benson_only, double fov, double monitor_distance, double benson_size)
+void opengl_blit_image(uint8_t *rgb, int filter, int benson_at_line, int render_benson_only, double fov, double monitor_distance, double benson_size, int benson_case)
 {
        double texture_left = 0;
        double texture_right = ((double)image_width) / (double)texture_size;
@@ -186,6 +186,13 @@ void opengl_blit_image(uint8_t *rgb, int filter, int benson_at_line, int render_
        double slope = tan(fov / 360 * M_PI) * monitor_distance;
 
        /* render image */
+
+       if (benson_case) {
+               glEnable(GL_CULL_FACE);
+               glFrontFace(GL_CW);
+               glCullFace(GL_BACK);
+       }
+
        glEnable(GL_TEXTURE_2D);
        glBindTexture(GL_TEXTURE_2D, image_name);
        glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);  /* no modulation with color */
@@ -212,6 +219,51 @@ void opengl_blit_image(uint8_t *rgb, int filter, int benson_at_line, int render_
        glVertex3f(-benson_size * slope, image_top * slope, -monitor_distance);
        glEnd();
        glDisable(GL_TEXTURE_2D);
+       /* render benson case */
+       if (benson_case) {
+               double left, right, bottom, top, near, far;
+               left = -benson_size * slope;
+               right = benson_size * slope;
+               bottom = image_bottom * slope;
+               top = image_top * slope;
+               near = -monitor_distance;
+               far = near - benson_size * slope / 3.0;
+               glBegin(GL_QUADS);
+               /* back */
+               glColor4f(0.3, 0.3, 0.3, 1.0);
+               glVertex3f(left, top, far);
+               glVertex3f(right, top, far);
+               glVertex3f(right, bottom, far);
+               glVertex3f(left, bottom, far);
+               /* top */
+               glColor4f(0.2, 0.2, 0.2, 1.0);
+               glVertex3f(left, top, near);
+               glVertex3f(right, top, near);
+               glVertex3f(right, top, far);
+               glVertex3f(left, top, far);
+               /* bottom */
+               glColor4f(0.05, 0.05, 0.05, 1.0);
+               glVertex3f(left, bottom, far);
+               glVertex3f(right, bottom, far);
+               glVertex3f(right, bottom, near);
+               glVertex3f(left, bottom, near);
+               /* left */
+               glColor4f(0.1, 0.1, 0.1, 1.0);
+               glVertex3f(left, bottom, far);
+               glVertex3f(left, bottom, near);
+               glVertex3f(left, top, near);
+               glVertex3f(left, top, far);
+               /* right */
+               glVertex3f(right, top, far);
+               glVertex3f(right, top, near);
+               glVertex3f(right, bottom, near);
+               glVertex3f(right, bottom, far);
+               glEnd();
+       }
+
+       if (benson_case) {
+               glDisable(GL_CULL_FACE);
+       }
 }
 
 /* render osd texture */